Thought I'd reply without all the quote.
Yes, I did get that feeling that my brain was rejecting what it was seeing. In the first week, my brain was in freefall. Okay, that's overstating it. But I definitely was experiencing some sort of weird IRL Recalibration!
But...3 weeks since I got my Rift and the motion sickness is gone. As a matter of fact, I just got out of playing Half Life 2 with the Hydra mod and I feel perfectly fine. Lunar Flight for 4 hours, if you subtract bathroom breaks and refilling water! (time gets away from you when you're inside)
I think we just need to stress to people that the vr sickness is our brain adjusting to this wholly new experience.
At first glance through the goggles, it seems familiar, but it's a new paradigm of visual experience. It seems right, when we turn our head, or tilt from shoulder to shoulder, but then we try to stand up and WAM! weirdness. Then you press the thumbstick forward WHAAMM! "That don't feel right!" Let me try turning with the thumbstick. Ugh...
For most people, hopefully it will pass within a month or so. For others, they will have to wait for the technology to catch up to them and they still may be limited to 1:1 positional tracking in small rooms, a "translation free" experiences. Or cockpit based movement as a start.
But there's a reason why most of us are having such strong reactions to vr, and it's not just the low resolution, motion blur, or latency. Those factors add to it, but the real reason is that it is so convincing even in it's current state, that the discrepancies between vision and inner ear start setting off alarms that something must be physically wrong with your body. "You must be poisoned! Now Puke!" But it seems like the good news is that it passes for the most part. Your brain won't be broken forever, it just folds these new sensations into the overall package and moves on. Personally I feel a little mentally evolved to have adapted to this. I hope that in 10 years I'm able to navigate a virtual universe at any speed I want with barrel rolls and loopedy loops.
TL;DR - Anecdotally, I got through the vr sickness. And so can you! (Hopefully